Spectral methods and the classical Crank-Nicolson scheme are applied to deduce the full discrete system for the continuous model, then the variational adjoint assimilation approach is used to derive the gradient and the corresponding adjoint system.

從這個全離散問題出發(fā)日韩人成视频区国产日韩区，結(jié)合全局或局部已知的觀測數(shù)據(jù)h18禁网站，分別構(gòu)造梯度下降算法求解相應(yīng)的最優(yōu)化問題禁18在线免费观看网站软件。我們分析了采用不同方法計算梯度所需的代價成年人黄色视频网站，另外，還給出一種選擇最優(yōu)迭代步長的算法国产免费性交片。

The alternating group iterative method is used to solve the implicit scheme and the Crank-Nicolson scheme of the dispersive equation.

數(shù)值試驗對色散方程的隱格式與Crank-Nicolson格式分別應(yīng)用交替分組迭代求解欧美日韩另类国产。

There are three difference formats in this thesis. They are backward difference, Crank-Nicolson"s difference and Galerkin"s difference.

本文對時間域采用的離散格式有兩點向后差分、Crank-Nicolson格式差分和Galerkin差分等给个黄色激情性爱网站。

The model is applied to numerically analyze the wave field and the coastwise current formed by the breaking of oblique incident wave in the Leadbetter Beach, Santa Barbara, California, USA. In the analysis the Crank-Nicolson scheme is adopted to solve the parabolic mild slope equation and the ADI finite difference scheme is applied to solve the model of wave induced coastwise current.

運用該近岸流方程偷拍视频三区，對美國Santa Barbara Leadbetter海岸波浪斜向入射所產(chǎn)生的波浪場及波浪破碎所形成的沿岸流進了數(shù)值模擬，其中拋物型緩坡模型采用Crank-Nicolson格式進行數(shù)值離散国产一级A片免费观看视频，近岸流方程采用ADI差分格式離散亚洲性爱无码精品网站。

There are explicit and implicit schemes in FDM . explicit scheme are easy to compute and make programmes, but it has a problem of conditional stability and the exactness is not high .

有限差分方法主要有，顯式格式和隱式格式(Crank-Nicolson格式)综合操逼网，其中顯式格式雖然計算簡單欧美熟妇XXXX片，便于編程使劲啊哈视频，但有穩(wěn)定性限制，并且精度也比較低爱爱大学网站入口，不便于適用。

Sir Harold Nicolson quoted the Oxford English Dictionary as saying: Diplomacy is the management of international relations by negotiation; the method by which these relations are adjusted by ambassadors and envoys; the business or art of the diplomatist.

尼科松轉(zhuǎn)引《牛津英語詞典》的解釋說：外交就是用談判的方式來處理國際關(guān)系九九99九九99精品视频23；是大使和使節(jié)用來調(diào)整和處理國際關(guān)系的方法色色网址五月；是外交官的業(yè)務(wù)或技術(shù)。

Sir Harold Nicolson quoted the Oxford English Dictionary as saying: Diplomacy is the management of international relations by negotiation; the method by which these relations are adjusted by assadors and envoys; the business or art of the diplomatist.

" "外交"的定義（2）"外交是運用智力和機智處理各獨立國家的政府之間的官方關(guān)系一伊人对综合网站，有時也推廣到獨立國家和附庸國家之間的關(guān)系美女黄18以下禁止观看黄频；或者更簡單地說，是指以和平手段處理國與國之間的事務(wù)国产亚州在线观看视频。

Georgia Nicolson is a lad-nabbing letch who can't keep her slutty minx hand off other people's boyfriends!

喬治亞·尼科爾森是個搶男人的淫婦巨乳在线播放，她總想著勾引別人的男朋友！

The stability and convergence of the fully discrete solutions are proved and the convergence order is also given.

從數(shù)值實驗上也驗證了該算法的可行性和高效性二级A片视频，對非定常N-S方程提出了一種新的全離散TGM：空間離散用標(biāo)準(zhǔn)FEM亚洲自拍高清无码，時間離散用Crank-Nicolson格式，證明了全離散解的穩(wěn)定性與收斂性美女医生被操免费网站。給出了收斂階不卡欧av在线天堂。

It has been called by Nigel Nicolson, Vita Sackville-West's son,"the longest and most charming love letter in literature."

Vita Sackville-West 的兒子 Nigel Nicolson 認(rèn)為，這部作品是&文學(xué)史上最長亚洲欧美激情一区二区、最迷人的情書又粗又长又硬的视频。&